White-collared Foliage-gleaner

anabazenops fuscus

Furnariidae,Philydorinae · Foliage-gleaners

Disc 2 · 2001 listed
Disc 3 · 2006 listed
Disc 1 · 2011 listed

The account

Description

6.7" Bill, with straight culmen and rounded lower mandible creates the impression of being upturned. It is bluish yellow with black on the culmen. Above dark brown with an umber-brown crown and a distinct white eyering and prominent white superciliary stripe. Rump and tail reddish rufous. A white throat which continues into a very characteristic white nuchal band. Chest and belly pale ochraceous, darkest on the crissum.

The disc records this picture against the bird without a caption. Disc 3 · 2006

Where it was recorded

The discs' own checklists select White-collared Foliage-gleaner at 11 localities.

Historical checklist localities on the disc's own area map — the red dots the original program drew, placed by its recovered projection. Not a range map: it shows the places whose checklists record the bird, nothing more. 1 has no usable coordinate and is listed below unplotted.

Boraceia BOSB
Fazenda Intervales FASB
Jureia-Peruibe JUSB position not recoverable
Nucleo Sta. Virginia NUSP
Parati PARB
Reserva Ecológica Guapiacú RERB
Rio de Janeiro RIRB
Serra da Cantareira SRSB
Serra dos Orgãos SRRB
Serra dos Tucanos SDTC
Ubatuba UBSB

How the map was made

The original program computed each red dot at display time from the locality's coordinates, using its map library and one of five base maps drawn for the screen widths of the day. That library's projection — an oblique rotation of the sphere about the map's own centre, 23.7°S 47.4°W — was read from the program and checked against the graticule the same program drew into the base maps: it reproduces every grid intersection to within about a pixel. The dots here use that projection on the 1280-pixel base map, with the coordinates the discs record. Nothing was placed by hand, no modern map data was used, and a place whose coordinate is incomplete, out of range or beyond the map's edge is listed rather than guessed.

The discs carried location maps only; none shows a distribution or range.

Voice

Variations on series of very characteristic, loud, fast and rhythmical 'kek kek kek kek.....' sounds; gives sometimes the impression of being a series of double calls 'kekek kekek kekek kekek kekek......'; also a series of nasal 'ziu ziu ziu ziu...' notes.

Behavior

Foraging mostly in pairs and climbing about. Also upside down, in dense foliage and along trunks inspecting dead leaf clumps and epiphytes or hammering into rotten wood and bamboo. Quite confiding at times.

Breeding

Nests in tree cavities (³⁰).

Habitat and status

Regularly heard, rather than seen in dense humid primary or secondary forest and forest borders. Seems to be fond of bamboo stands within forest, but is not confined to bamboo.

Distribution

Throughout, though less common in the southern part of Estado do São Paulo south of Fazenda Intervales. Sea level to 1500 meters.

Taxonomy notes

A chunky foliage-gleaner of Southeast Brazil which is easy to find by its calls.

Decoded from the disc's own bytes. Each part is shown under the heading the disc files it under, and the wording, spelling and punctuation are the author's.

Vocalizations

Call. Fazenda Intervales, 11/28/97. Sunny, 27°C. Primary forest. With Saltator similis, Cyclarhis gujanensis, Carpornis cucullatus, Vireo olivaceus, Legatus leucophaius, Todirostrum plumbeiceps.
Calls. Fazenda Intervales, 11/30/97. Sunny, 27°C. Primary bamboo forest.
Call. Fazenda Intervales, 11/30/97. Sunny, 27°C. Primary forest.
Calls. Fazenda Intervales, 11/30/97. Sunny, 27°C. Primary forest. With Habia rubica, Turdus rufiventris, Cacicus haemorrhous, Parula pitiayumi.
Calls. Fazenda Intervales, 11/30/97. Sunny, 27°C. Primary forest.
Warning calls. 10/26/99, Serra da Mantiqueira, near Hotel Do Ype. Clear, 25°C. Forest. With Cacicus haemorrhous, Hemitriccus diops, Grallaria varia, Dysithamnus stictothorax, Trogon viridis.

Recording files on the disc

9467.mp3 Call. Fazenda Intervales, 11/28/97. Sunny, 27°C. Primary forest. With Saltator similis, Cyclarhis gujanensis, Carpornis cucullatus, Vireo olivaceus, Legatus leucophaius, Todirostrum plumbeiceps.
16193.mp3 Calls. Fazenda Intervales, 11/30/97. Sunny, 27°C. Primary bamboo forest.
3611.mp3 Call. Fazenda Intervales, 11/30/97. Sunny, 27°C. Primary forest.
2789.mp3 Calls. Fazenda Intervales, 11/30/97. Sunny, 27°C. Primary forest. With Habia rubica, Turdus rufiventris, Cacicus haemorrhous, Parula pitiayumi.
2478.mp3 Calls. Fazenda Intervales, 11/30/97. Sunny, 27°C. Primary forest.
12315.wav Warning calls. 10/26/99, Serra da Mantiqueira, near Hotel Do Ype. Clear, 25°C. Forest. With Cacicus haemorrhous, Hemitriccus diops, Grallaria varia, Dysithamnus stictothorax, Trogon viridis.

More images

Fazenda Intervales, November 2008, Fritz Mueller. Disc 1 · 2011

Across the three discs

The work was published on three discs — Disc 2 in 2001, Disc 3 in 2006 and Disc 1 in 2011. Where they differ, that is a difference between historical releases, and it is never merged away. The 2011 disc is not treated as correcting the earlier ones.

Which discs list this bird

Disc 2 · 2001 — in this disc's bird list
Disc 3 · 2006 — in this disc's bird list
Disc 1 · 2011 — in this disc's bird list

How that was established

Disc 2 · 2001: aux_nonzero;local_checklist_byte45_flag_1
Disc 3 · 2006: aux_nonzero;local_checklist_byte45_flag_1
Disc 1 · 2011: aux_nonzero;local_checklist_byte45_flag_1

The disc's own record fields that place the bird on its list: a non-empty entry in the species table, and the byte that marks it as selected on a local checklist.

The account in the Disc 1 · 2011 revision

The 2011 Disc 1 revision carries this account text unchanged from the Disc 3 release.

The work's own taxonomy

The discs carried three parallel name schemes. All three are shown as recovered; none is a modern taxonomy and none has been updated.

Scheme	Scientific name	English name	Family
WORLD	anabazenops fuscus	White-collared Foliage-gleaner	Furnariidae,Philydorinae
CLEMENTS	anabazenops fuscus	White-collared Foliage-gleaner	Furnariidae,Philydorinae
AOU_HM	anabazenops fuscus	White-collared Foliage-gleaner	Furnariidae,Philydorinae

Source details

Identifier on this site: seb_species_0091
Account identifier: seb_account_0091
Account number on the disc: 91
Source edition: CD03 / 2006 package
Original taxonomy scheme: WORLD
Structure status: heuristic; decoded_account_text and segment JSON remain authoritative